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Wu Y, Allegaert K, Flint RB, Goulooze SC, Välitalo PAJ, de Hoog M, Mulla H, Sherwin CMT, Simons SHP, Krekels EHJ, Knibbe CAJ, Völler S. When will the Glomerular Filtration Rate in Former Preterm Neonates Catch up with Their Term Peers? Pharm Res 2024; 41:637-649. [PMID: 38472610 PMCID: PMC11024008 DOI: 10.1007/s11095-024-03677-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 02/10/2024] [Indexed: 03/14/2024]
Abstract
AIMS Whether and when glomerular filtration rate (GFR) in preterms catches up with term peers is unknown. This study aims to develop a GFR maturation model for (pre)term-born individuals from birth to 18 years of age. Secondarily, the function is applied to data of different renally excreted drugs. METHODS We combined published inulin clearance values and serum creatinine (Scr) concentrations in (pre)term born individuals throughout childhood. Inulin clearance was assumed to be equal to GFR, and Scr to reflect creatinine synthesis rate/GFR. We developed a GFR function consisting of GFRbirth (GFR at birth), and an Emax model dependent on PNA (with GFRmax, PNA50 (PNA at which half ofGFR max is reached) and Hill coefficient). The final GFR model was applied to predict gentamicin, tobramycin and vancomycin concentrations. RESULT In the GFR model, GFRbirth varied with birthweight linearly while in the PNA-based Emax equation, GA was the best covariate for PNA50, and current weight for GFRmax. The final model showed that for a child born at 26 weeks GA, absolute GFR is 18%, 63%, 80%, 92% and 96% of the GFR of a child born at 40 weeks GA at 1 month, 6 months, 1 year, 3 years and 12 years, respectively. PopPK models with the GFR maturation equations predicted concentrations of renally cleared antibiotics across (pre)term-born neonates until 18 years well. CONCLUSIONS GFR of preterm individuals catches up with term peers at around three years of age, implying reduced dosages of renally cleared drugs should be considered below this age.
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Affiliation(s)
- Yunjiao Wu
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden University, 2333CC, Leiden, The Netherlands
| | - Karel Allegaert
- Department of Hospital Pharmacy, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Development and Regeneration, and Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Robert B Flint
- Department of Hospital Pharmacy, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Pediatrics, Division of Neonatology, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Sebastiaan C Goulooze
- Leiden Experts On Advanced Pharmacokinetics and Pharmacodynamics (LAP&P), Leiden, The Netherlands
| | - Pyry A J Välitalo
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, 70210, Kuopio, Finland
- Finnish Medicines Agency, Hallituskatu 12-14, 70100, Kuopio, Finland
| | - Matthijs de Hoog
- Department of Neonatal and Pediatric Intensive Care, Division of Pediatric Intensive Care, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Hussain Mulla
- Department of Pharmacy, University Hospitals of Leicester, Glenfield Hospital, Leicester, LE39QP, England
| | - Catherine M T Sherwin
- Department of Pediatrics, Wright State University Boonshoft School of Medicine/Dayton Children's Hospital, One Children's Plaza, Dayton, OH, USA
| | - Sinno H P Simons
- Department of Pediatrics, Division of Neonatology, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Elke H J Krekels
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden University, 2333CC, Leiden, The Netherlands
- Certara Inc, Princeton, NJ, USA
| | - Catherijne A J Knibbe
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden University, 2333CC, Leiden, The Netherlands
- Department of Pediatrics, Division of Neonatology, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
- Department of Clinical Pharmacy, St Antonius Hospital, Nieuwegein, The Netherlands
| | - Swantje Völler
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden University, 2333CC, Leiden, The Netherlands.
- Department of Pediatrics, Division of Neonatology, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands.
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Elmrayed S, Pinto J, Tough SC, McDonald SW, Scime NV, Wollny K, Lee Y, Kramer MS, Ospina MB, Lorenzetti DL, Madubueze A, Leung AA, Kumar M, Fenton TR. Small for gestational age preterm infants and later adiposity and height: A systematic review and meta-analysis. Paediatr Perinat Epidemiol 2023; 37:652-668. [PMID: 37580882 DOI: 10.1111/ppe.13002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 07/21/2023] [Accepted: 07/29/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND Overweight and obesity and their consequent morbidities are important worldwide health problems. Some research suggests excess adiposity origins may begin in fetal life, but unknown is whether this applies to infants born preterm. OBJECTIVE The objective of the study was to assess the association between small for gestational age (SGA) birth and later adiposity and height among those born preterm. DATA SOURCES MEDLINE, EMBASE and CINAHL until October 2022. STUDY SELECTION AND DATA EXTRACTION Studies were included if they reported anthropometric (adiposity measures and height) outcomes for participants born preterm with SGA versus non-SGA. Screening, data extraction and risks of bias assessments were conducted in duplicate by two reviewers. SYNTHESIS We meta-analysed across studies using random-effects models and explored potential heterogeneity sources. RESULTS Thirty-nine studies met the inclusion criteria. In later life, preterm SGA infants had a lower body mass index (-0.66 kg/m2 , 95% CI -0.79, -0.53; 32 studies, I2 = 16.7, n = 30,346), waist circumference (-1.20 cm, 95% CI -2.17, -0.23; 13 studies, I2 = 19.4, n = 2061), lean mass (-2.62 kg, 95% CI -3.45, 1.80; 7 studies, I2 = 0, n = 205) and height (-3.85 cm, 95% CI -4.73, -2.96; 26 studies, I2 = 52.6, n = 4174) compared with those preterm infants born non-SGA. There were no differences between preterm SGA and preterm non-SGA groups in waist/hip ratio, body fat, body fat per cent, truncal fat per cent, fat mass index or lean mass index, although power was limited for some analyses. Studies were rated at high risk of bias due to potential residual confounding and low risk of bias in other domains. CONCLUSIONS Compared to their preterm non-SGA peers, preterm infants born SGA have lower BMI, waist circumference, lean body mass and height in later life. No differences in adiposity were observed between SGA preterm infants and non-SGA preterm infants.
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Affiliation(s)
- Seham Elmrayed
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Institute of Global Health and Human Ecology, American University in Cairo, Cairo, Egypt
- Virginia Mason Franciscan Health, Seattle, Washington, USA
| | - Jahaira Pinto
- Faculty of Nursing, University of Calgary, Calgary, Alberta, Canada
| | - Suzanne C Tough
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Sheila W McDonald
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Natalie V Scime
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Krista Wollny
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Senior Persons Living Connected, Toronto, Ontario, Canada
| | - Yoonshin Lee
- Senior Persons Living Connected, Toronto, Ontario, Canada
| | - Michael S Kramer
- Departments of Pediatrics and of Epidemiology and Biostatistics, McGill University Faculty of Medicine, Montreal, Quebec, Canada
| | - Maria B Ospina
- Department of Public Health Sciences, Faculty of Health Sciences, Queen's University, Kingston, Canada
| | - Diane L Lorenzetti
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Health Sciences Library and Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Ada Madubueze
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Alexander A Leung
- Departments of Medicine and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Manoj Kumar
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Tanis R Fenton
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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3
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Fenton TR, Elmrayed S, Scime NV, Tough SC, Pinto J, Sabet F, Wollny K, Lee Y, Harrison TG, Alladin-Karan B, Kramer MS, Ospina MB, Lorenzetti DL, Madubueze A, Leung AA, Kumar M. Small for date preterm infants and risk of higher blood pressure in later life: A systematic review and meta-analysis. Paediatr Perinat Epidemiol 2023. [PMID: 36688258 DOI: 10.1111/ppe.12955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 01/05/2023] [Accepted: 01/08/2023] [Indexed: 01/24/2023]
Abstract
BACKGROUND Historical reports suggest that infants born small for gestational age (SGA) are at increased risk for high blood pressure (BP) at older ages after adjustment for later age body size. Such adjustment may be inappropriate since adiposity is a known cause of cardiovascular and metabolic disease. OBJECTIVES To assess the association between SGA births and later BP among preterm births, considering potential background confounders and over-adjustment for later body size. METHODS A database search of studies up to October 2022 included MEDLINE, EMBASE and CINAHL. Studies were included if they reported BP (systolic [SBP] or diastolic [DBP]) (outcomes) for participants born preterm with SGA (exposure) or non-SGA births. All screening, extraction steps, and risk of bias (using the Risk of Bias In Non-randomised Studies of Interventions [ROBINS-I] tool) were conducted in duplicate by two reviewers. Data were pooled in meta-analysis using random-effects models. We explored potential sources of heterogeneity. RESULTS We found no meaningful difference in later BP between preterm infants with and without SGA status at birth. Meta-analysis of 25 studies showed that preterm SGA, compared to preterm non-SGA, was not associated with higher BP at age 2 and older with mean differences for SBP 0.01 mmHg (95% CI -0.10, 0.12, I2 = 59.8%, n = 20,462) and DBP 0.01 mm Hg (95% CI -0.10, 0.12), 22 studies, (I2 = 53.0%, n = 20,182). Adjustment for current weight did not alter the results, which could be due to the lack of differences in later weight status in most of the included studies. The included studies were rated to be at risk of bias due to potential residual confounding, with a low risk of bias in other domains. CONCLUSIONS Evidence indicates that preterm infants born SGA are not at increased risk of developing higher BP as children or as adults as compared to non-SGA preterm infants.
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Affiliation(s)
- Tanis R Fenton
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Seham Elmrayed
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Global Health and Human Ecology Institute, American University in Cairo, Cairo, Egypt
| | - Natalie V Scime
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Suzanne C Tough
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Jahaira Pinto
- Virginia Mason Franciscan Health, Seattle, Washington, USA
| | - Fatemeh Sabet
- Interior Health Authority, Kelowna, British Columbia, Canada
| | - Krista Wollny
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Faculty of Nursing, University of Calgary, Calgary, Alberta, Canada
| | - Yoonshin Lee
- Senior Persons Living Connected, Hong Fook Mental Health Association, Toronto, Ontario, Canada
| | - Tyrone G Harrison
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Bibi Alladin-Karan
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Michael S Kramer
- Departments of Pediatrics and of Epidemiology and Biostatistics, McGill University Faculty of Medicine, Montreal, Quebec, Canada
| | - Maria B Ospina
- Department of Public Health Sciences, Faculty of Health Sciences, Queen's University, Kingston, Ontario, Canada
| | - Diane L Lorenzetti
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Health Sciences Library and Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Ada Madubueze
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Alexander A Leung
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Manoj Kumar
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
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4
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Urine podocyte mRNA loss in preterm infants and related perinatal risk factors. Pediatr Nephrol 2023; 38:729-738. [PMID: 35759002 PMCID: PMC9842585 DOI: 10.1007/s00467-022-05663-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 06/05/2022] [Accepted: 06/07/2022] [Indexed: 01/21/2023]
Abstract
BACKGROUND Preterm birth has been identified as a risk factor for development of long-term chronic kidney disease. Podocyte loss has been reported to contribute to this process in preterm animal models. However, details about podocyte loss in preterm infants and related perinatal risk factors have not been well clarified. METHODS Forty full-term infants and 106 preterm infants were enrolled. Urine samples were collected from full-term infants within 4-7 days of birth and preterm infants at 37-40 weeks of corrected age. Levels of urine podocin mRNA, urine protein (UP), and urine microalbumin (UMA) were measured, and the relationship between these markers was evaluated. Clinical information in these infants was collected, and potential correlates that may lead to increased podocyte loss during the perinatal period were identified using linear regression analysis. RESULTS Urine podocyte loss indicated by the urine podocin mRNA to creatinine ratio (UpodCR) was higher in preterm infants than in full-term infants. UpodCR was correlated with the levels of UP and UMA. Multiple linear regression analysis also showed that lower gestational age (GA) at birth and small for gestational age (SGA) were high risk factors for urine podocyte loss. CONCLUSIONS Increasing urine podocyte loss was identified in preterm infants. Moreover, perinatal factors were associated with podocyte loss and may be a potential direction for comprehensive research and intervention in this field. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Sanderson K, O'Shea TM, Kistler CE. An Individualized Approach to Kidney Disease Screening in Children With a History of Preterm Birth. Clin Pediatr (Phila) 2022; 62:385-388. [PMID: 36271655 PMCID: PMC10119330 DOI: 10.1177/00099228221132126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Keia Sanderson
- Division of Nephrology and Hypertension, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - T Michael O'Shea
- Department of Pediatrics, Division of Neonatology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Christine E Kistler
- Department of Family Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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6
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Chainoglou A, Chrysaidou K, Kotsis V, Stabouli S. Preterm Birth, Kidney Function and Cardiovascular Disease in Children and Adolescents. CHILDREN 2022; 9:children9081130. [PMID: 36010021 PMCID: PMC9406522 DOI: 10.3390/children9081130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 11/29/2022]
Abstract
Over recent decades, there has been a global increase in preterm birth rate, which constitutes about 11% of total births worldwide. The present review aims to summarize the current knowledge on the long-term consequences of prematurity on renal and cardiovascular development and function. Recent literature supports that prematurity, intrauterine growth restriction or low birth weight (LBW) may have an adverse impact on the development of multiple organ systems, predisposing to chronic diseases in childhood and adulthood, such as arterial hypertension and chronic kidney disease. According to human autopsy and epidemiological studies, children born preterm have a lower nephron number, decreased kidney size and, in some cases, affected renal function. The origin of hypertension in children and adults born preterm seems to be multifactorial as a result of alterations in renal, cardiac and vascular development and function. The majority of the studies report increased systolic and diastolic blood pressure (BP) in individuals born preterm compared to full term. The early prevention and detection of chronic non-communicable diseases, which start from childhood and track until adulthood in children with a history of prematurity or LBW, are important.
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Affiliation(s)
- Athanasia Chainoglou
- 1st Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Aristotle University Thessaloniki, Hippokratio Hospital, 54642 Thessaloniki, Greece; (A.C.); (K.C.)
| | - Katerina Chrysaidou
- 1st Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Aristotle University Thessaloniki, Hippokratio Hospital, 54642 Thessaloniki, Greece; (A.C.); (K.C.)
| | - Vasilios Kotsis
- Hypertension-24h ABPM ESH Center of Excellence, 3rd Department of Medicine, Aristotle University of Thessaloniki, Papageorgiou Hospital, 56429 Thessaloniki, Greece;
| | - Stella Stabouli
- 1st Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Aristotle University Thessaloniki, Hippokratio Hospital, 54642 Thessaloniki, Greece; (A.C.); (K.C.)
- Correspondence: ; Tel.: +30-697-643-3767
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7
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Saylor C, Malin AJ, Tamayo-Ortiz M, Cantoral A, Amarasiriwardena C, Estrada-Gutierrez G, Tolentino MC, Pantic I, Wright RO, Tellez-Rojo MM, Sanders AP. Early childhood fluoride exposure and preadolescent kidney function. ENVIRONMENTAL RESEARCH 2022; 204:112014. [PMID: 34506780 PMCID: PMC11071127 DOI: 10.1016/j.envres.2021.112014] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Early-life renal maturation is susceptible to nephrotoxic environmental chemicals. Given the widespread consumption of fluoride and the global obesity epidemic, our main aim was to determine whether childhood fluoride exposure adversely affects kidney function in preadolescence, and if adiposity status modifies this association. METHODS Our study included 438 children from the PROGRESS cohort. Urinary fluoride (uF) was assessed at age 4 by diffusion analysis; outcomes studied included estimated glomerular filtration rate (eGFR), blood urea nitrogen (BUN), selected kidney proteins and blood pressure measured at age 8-12 years. We modeled the relationship between uF and outcomes, and adjusted for body mass index (BMI), age, sex, and socioeconomic status. RESULTS The median uF concentration was 0.67 μg/mL. We observed null associations between 4-year uF and preadolescent eGFR, although effect estimates were in the expected inverse direction. A single unit increase in ln-transformed uF was associated with a 2.2 mL/min decrease in cystatin C-based eGFR (95% CI: 5.8, 1.4; p = 0.23). We observed no evidence of sex-specific effects or effect modification by BMI status. Although uF was not associated with BMI, among children with obesity, we observed an inverse association (β: 4.8; 95% CI: 10.2, 0.6; p = 0.08) between uF and eGFR. CONCLUSIONS Low-level fluoride exposure in early childhood was not associated with renal function in preadolescence. However, given the adverse outcomes of chronic fluoride consumption it is possible that the preadolescent age was too young to observe any effects. Longitudinal follow-up in this cohort and others is an important next step.
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Affiliation(s)
- Charles Saylor
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ashley J Malin
- Department of Population and Public Health Sciences, Keck School of Medicine of USC, 2001 N Soto St., Los Angeles, CA, 90032, USA.
| | - Marcela Tamayo-Ortiz
- Occupational Health Research Unit, Mexican Social Security Institute, Mexico City, Mexico.
| | - Alejandra Cantoral
- Iberoamerican University -Mexico City, Department of Health, Mexico City, Mexico
| | - Chitra Amarasiriwardena
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Mari Cruz Tolentino
- Department of Nutrition, National Institute of Perinatology, Mexico City, Mexico
| | - Ivan Pantic
- Department of Developmental Neurobiology, National Institute of Perinatology, Mexico City, Mexico
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Martha M Tellez-Rojo
- Occupational Health Research Unit, Mexican Social Security Institute, Mexico City, Mexico
| | - Alison P Sanders
- Department of Environmental and Occupational Health, University of Pittsburgh, USA.
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Abstract
OBJECTIVE To investigate the literature and determine if prematurity has an impact on long-term adverse kidney outcomes. DESIGN Systematic review. DATA SOURCES OVID Medline, PubMed, SCOPUS, CINAHL and EMBASE databases were searched for studies relating to the adverse outcomes of prematurity from 1990 to April 2021. ELIGIBILITY CRITERIA FOR SELECTING STUDIES All articles published between January 1990 and April 2021 that investigated whether premature infants developed long-term adverse renal outcomes were included in this review. Articles must have been human studies and written in English. Case series with less than 20 participants and case studies were excluded. DATA EXTRACTION AND SYNTHESIS One reviewer completed the database searches. Article selection was performed independently and in a non-blinded manner by both reviewers. Initial screening was by title and abstract. Full texts of remaining articles were reviewed. Articles for which inclusion was unclear were re-reviewed by both reviewers, and a unanimous decision was taken as to whether they should be included. The Newcastle-Ottawa Scale was used for quality assessment of the included articles. RESULTS The literature search yielded 31 human studies, which investigated the short-term and long-term kidney outcomes of prematurity. These studies were conducted in 17 different countries. The most common outcomes measured were blood pressure (BP) and glomerular filtration rate. Other common outcomes measured included kidney size and mass, proteinuria, albuminuria, chronic kidney disease (CKD) and physical parameters such as height, weight and body mass index. CONCLUSION Prematurity is likely linked to increased risk of kidney dysfunction and high BP in childhood and into early adulthood. Premature birth conferred a twofold increased risk of CKD and extremely premature birth conferred a threefold increased risk of CKD. However, further larger multicentre studies are needed to draw definitive conclusions on the long-term kidney outcomes of prematurity.
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Affiliation(s)
- Ananya Sangla
- Monash University Faculty of Medicine, Nursing and Health Sciences, Clayton, Victoria, Australia
| | - Yogavijayan Kandasamy
- Department of Neonatology, Townsville Hospital and Health Service, Townsville, Queensland, Australia
- The University of Newcastle, Callaghan, New South Wales, Australia
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9
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Koizumi M, Ida S, Shoji Y, Etani Y, Kawai M. Renal function in short-statured children born small for gestational age and treated with growth hormone. Pediatr Int 2021; 63:775-781. [PMID: 33073439 DOI: 10.1111/ped.14514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/05/2020] [Accepted: 10/15/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND Children born small for gestational age (SGA), particularly when associated with an extremely low birthweight (ELBW), have a higher risk of renal dysfunction. Growth hormone (GH) treatment is used to treat short-statured children born SGA; however, its effects on renal function remain elusive, especially in those born SGA with ELBW. METHODS Short-statured children born SGA (N = 42) were included. Subjects were subdivided into two groups based on their birthweight: the ELBW group (N = 15) with a birthweight of <1,000 g, and the non-ELBW group (N = 27) with birthweights ranging between 1,000 and 2,500 g. The creatinine-based estimated glomerular filtration rates (eGFR) before (pre-eGFR) and 5 years after GH treatment (post-eGFR) were compared. Correlations between eGFR, anthropometric, or birth parameters, and cumulative GH dose were evaluated using Spearman's rank correlation coefficient. RESULTS The ELBW group had a lower pre- and post-eGFR than the non-ELBW group. Five-year GH treatment did not significantly reduce eGFR in either group. Post-eGFR was positively associated with gestational week and birthweight. However, the cumulative GH dose was not correlated with pre-eGFR, post-eGFR, or percentage change in eGFR (%ΔeGFR). The change in bodyweight standard deviation score during GH treatment was positively correlated with %ΔeGFR in the ELBW group. CONCLUSIONS The current results indicated that GH treatment was unlikely a risk for the reduction in eGFR in short-statured children born SGA. However, eGFR should be carefully monitored, especially in those born SGA with ELBW because these subjects had lower eGFR than non-ELBW subjects.
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Affiliation(s)
- Mikiko Koizumi
- Departments of, Department of, Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, Izumi, Osaka, Japan.,Department of, Pediatrics, Yodogawa Christian Hospital, Osaka City, Osaka, Japan
| | - Shinobu Ida
- Departments of, Department of, Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, Izumi, Osaka, Japan
| | - Yasuko Shoji
- Departments of, Department of, Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, Izumi, Osaka, Japan
| | - Yuri Etani
- Departments of, Department of, Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, Izumi, Osaka, Japan
| | - Masanobu Kawai
- Departments of, Department of, Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, Izumi, Osaka, Japan.,Department of, Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Izumi, Osaka, Japan
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10
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Postnatal Expression Profile of MicroRNAs Associated with Cardiovascular Diseases in 3- to 11-Year-Old Preterm-Born Children. Biomedicines 2021; 9:biomedicines9070727. [PMID: 34202871 PMCID: PMC8301298 DOI: 10.3390/biomedicines9070727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/11/2021] [Accepted: 06/22/2021] [Indexed: 01/07/2023] Open
Abstract
(1) Background: Preterm-born children have an increased cardiovascular risk with the first clinical manifestation during childhood and/or adolescence. (2) Methods: The occurrence of overweight/obesity, prehypertension/hypertension, valve problems or heart defects, and postnatal microRNA expression profiles were examined in preterm-born children at the age of 3 to 11 years descending from preterm prelabor rupture of membranes (PPROM) and spontaneous preterm birth (PTB) pregnancies. The whole peripheral blood gene expression of 29 selected microRNAs associated with cardiovascular diseases was the subject of our interest. (3) Results: Nearly one-third of preterm-born children (32.43%) had valve problems and/or heart defects. The occurrence of systolic and diastolic prehypertension/hypertension was also inconsiderable in a group of preterm-born children (27.03% and 18.92%). The vast majority of children descending from either PPROM (85.45%) or PTB pregnancies (85.71%) had also significantly altered microRNA expression profiles at 90.0% specificity. (4) Conclusions: Postnatal microRNA expression profiles were significantly influenced by antenatal and early postnatal factors (gestational age at delivery, birth weight of newborns, and condition of newborns at the moment of birth). These findings may contribute to the explanation of increased cardiovascular risk in preterm-born children. These findings strongly support the belief that preterm-born children should be dispensarized for a long time to have access to specialized medical care.
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11
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Pulju M, Pruitt C, Reid-Adam J, Spear E, Stroustrup A, Green RS, Weintraub AS. Renal insufficiency in children born preterm: examining the role of neonatal acute kidney injury. J Perinatol 2021; 41:1432-1440. [PMID: 34035456 DOI: 10.1038/s41372-021-01097-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 04/29/2021] [Accepted: 05/06/2021] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To identify the prevalence of renal insufficiency (RI) in children with a history of prematurity and acute kidney injury (AKI). STUDY DESIGN This prospective cohort study evaluated renal function in children born preterm at 5-9 years of age. Univariable analyses compared perinatal and follow-up data from subjects with and without AKI history, and with and without current RI. Regression analyses were attempted to model RI as a function of AKI and other clinical risk factors. RESULTS Fifteen of 43 (35%) participants had previously undiagnosed RI. Only children with no AKI history or neonatal stage 1 AKI presented for follow-up. Children born preterm with a history of stage 1 AKI had higher serum creatinine (sCr) at follow-up, but were not more likely to have RI compared to children without stage 1 AKI history (RI prevalence 30% and 36% in AKI and non-AKI group, respectively). CONCLUSION The high prevalence of RI in this preterm cohort at middle childhood follow-up highlights the need for routine kidney health assessments in this population. Large multicenter studies are needed to further characterize the impact of premature birth and mild AKI on renal function throughout childhood.
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Affiliation(s)
- Margaret Pulju
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, The Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Division of Neonatology, Department of Pediatrics, Cohen Children's Medical Center at Northwell Health, New Hyde Park, NY, USA
| | - Cassandra Pruitt
- Department of Medical Education, The Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jessica Reid-Adam
- Division of Pediatric Nephrology, Department of Pediatrics, The Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Emily Spear
- Department of Environmental Medicine and Public Health, The Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Annemarie Stroustrup
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, The Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Division of Neonatology, Department of Pediatrics, Cohen Children's Medical Center at Northwell Health, New Hyde Park, NY, USA.,Department of Environmental Medicine and Public Health, The Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Robert S Green
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, The Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Andrea S Weintraub
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, The Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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12
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Van Lieshout RJ, McGowan PO, de Vega WC, Savoy CD, Morrison KM, Saigal S, Mathewson KJ, Schmidt LA. Extremely Low Birth Weight and Accelerated Biological Aging. Pediatrics 2021; 147:peds.2020-001230. [PMID: 34001643 DOI: 10.1542/peds.2020-001230] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/08/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Extremely low birth weight (ELBW) (<1000 g) survivors are exposed to elevated levels of physiologic stress during their lives and may be susceptible to accelerated aging. Using the oldest known longitudinally followed cohort of ELBW survivors, we compared biological aging in this group using an epigenetic clock to a sample of matched normal birth weight (NBW) (>2500 g) control participants. METHODS Buccal cells were collected from 45 ELBW survivors and 49 NBW control participants at 30 to 35 years of age. Epigenetic age was calculated from the weighted average of DNA methylation at 353 cytosine-phosphate-guanine sequence within DNA sites, by using the Illumina Infinium Human Methylation EPIC 850k BeadChip array. RESULTS Before and after statistically adjusting for neurosensory impairment and the presence of chronic health conditions, a significant sex by birth weight group interaction was observed in the 353-site epigenetic-clock assay (P = .03), whereby ELBW men had a significantly older epigenetic age than NBW men (4.6 years; P = .01). Women born at ELBW were not found to be epigenetically older than their NBW peers. CONCLUSIONS The results of this study suggest that prenatal exposures may play an important role in aging, and that men born preterm may experience accelerated aging relative to their peers. We further highlight the need to monitor and promote the health of preterm survivors, with a particular focus on healthy aging across the life span.
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Affiliation(s)
| | - Patrick O McGowan
- Center for Environmental Epigenetics and Development, Department of Biological Sciences, University of Toronto Scarborough, Scarborough, Ontario, Canada
| | - Wilfred C de Vega
- Center for Environmental Epigenetics and Development, Department of Biological Sciences, University of Toronto Scarborough, Scarborough, Ontario, Canada
| | - Calan D Savoy
- Departments of Psychiatry and Behavioural Neurosciences,
| | | | | | - Karen J Mathewson
- Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario; and
| | - Louis A Schmidt
- Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario; and
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13
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Heo JS, Lee JM. The Long-Term Effect of Preterm Birth on Renal Function: A Meta-Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18062951. [PMID: 33805740 PMCID: PMC8001027 DOI: 10.3390/ijerph18062951] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 12/29/2022]
Abstract
The preterm-born adult population is ever increasing following improved survival rates of premature births. We conducted a meta-analysis to investigate long-term effects of preterm birth on renal function in preterm-born survivors. We searched PubMed and EMBASE to identify studies that compared renal function in preterm-born survivors and full-term-born controls, published until 2 February 2019. A random effects model with standardized mean difference (SMD) was used for meta-analyses. Heterogeneity of the studies was evaluated using Higgin’s I2 statistics. Risk of bias was assessed using the Newcastle–Ottawa quality assessment scale. Of a total of 24,388 articles screened, 27 articles were finally included. Compared to full-term-born controls, glomerular filtration rate and effective renal plasma flow were significantly decreased in preterm survivors (SMD −0.54, 95% confidence interval (CI), −0.85 to −0.22, p = 0.0008; SMD −0.39, 95% CI, −0.74 to −0.04, p = 0.03, respectively). Length and volume of the kidneys were significantly decreased in the preterm group compared to the full-term controls (SMD −0.73, 95% CI, −1.04 to −0.41, p < 0.001; SMD −0.82, 95% CI, −1.05 to −0.60, p < 0.001, respectively). However, serum levels of blood urea nitrogen, creatinine, and cystatin C showed no significant difference. The urine microalbumin to creatinine ratio was significantly increased in the preterm group. Both systolic and diastolic blood pressures were also significantly elevated in the preterm group, although the plasma renin level did not differ. This meta-analysis demonstrates that preterm-born survivors may be subject to decreased glomerular filtration, increased albuminuria, decreased kidney size and volume, and hypertension even though their laboratory results may not yet deteriorate.
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Affiliation(s)
- Ju Sun Heo
- Department of Pediatrics, Anam Hospital, Korea University College of Medicine, Seoul 02841, Korea;
| | - Jiwon M. Lee
- Department of Pediatrics, Chungnam National University Hospital, Daejeon 35015, Korea
- Department of Pediatrics, Chungnam National University College of Medicine, Daejeon 35015, Korea
- Correspondence: ; Tel.: +82-42-280-7152
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14
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Filler G, Bhayana V, Schott C, Díaz‐González de Ferris ME. How should we assess renal function in neonates and infants? Acta Paediatr 2021; 110:773-780. [PMID: 32869283 DOI: 10.1111/apa.15557] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/20/2020] [Accepted: 08/24/2020] [Indexed: 11/28/2022]
Abstract
AIM Review of current knowledge on assessing renal function in term and preterm neonates. METHODS Literature review and analysis of own data. RESULTS Prematurity, genetic, environmental and maternal factors may alter peak nephron endowment and life-long renal function. Nephrogenesis continues until 34-36 weeks of gestation, but it is altered with premature delivery. Variability of nephron endowment has a substantial impact on the clearance of renally excreted drugs. Postnatally, glomerular function rate (GFR) increases daily, doubles by two weeks, and slowly reaches full maturity at 18 months of age. Ideally, renal function biomarkers should be expressed as age-independent z-scores, and evidence suggests indexing these values to post-conceptual age rather than chronological age. Newborn and maternal serum creatinine correlate tightly for more than 72 hours after delivery, rendering this biomarker unsuitable for the assessment of neonatal renal function. Cystatin C does not cross the placenta and may be the preferred biomarker in the neonate. Here, we provide preliminary data on the natural evolution of the cystatin C eGFR in infancy. CONCLUSION Cystatin C may be superior for GFR estimation in neonates, but the best approach to drug dosing of renally excreted drugs remains to be established.
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Affiliation(s)
- Guido Filler
- Departments of Paediatrics, Medicine, and The Lilibeth Caberto Kidney Clinical Research Unit Western University London ON Canada
- Department of Pathology and Laboratory Medicine University of Western Ontario London Ontario Canada
| | - Vipin Bhayana
- Department of Pathology and Laboratory Medicine University of Western Ontario London Ontario Canada
| | - Clara Schott
- Schulich School of Medicine and Dentistry University of Western Ontario London Ontario Canada
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15
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Landmann E, Brugger M, Blank V, Wudy SA, Hartmann M, Strauch K, Rudloff S. Adrenal Steroid Metabolism and Blood Pressure in 5- to 7-Year-Old Children Born Preterm as Compared to Peers Born at Term. Front Pediatr 2021; 9:754989. [PMID: 34917560 PMCID: PMC8669960 DOI: 10.3389/fped.2021.754989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 10/27/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Previous studies indicated preterm birth to be a risk factor for hypertension in adolescence and adulthood. However, studies in children investigating the underlying mechanisms are scarce. Objective: We hypothesized children born preterm to have higher excretion of cortisol and/or androgen metabolites per day concomitantly with higher blood pressure as compared to peers born at term. We thus aimed to compare urinary steroid profiles and blood pressure between 5- to 7-year-old children born preterm and peers born at term. Furthermore, aldosterone precursor excretion per day was compared between both groups. Methods: Blood pressure was measured in 236 children (preterms n = 116; gestational age 29.8 ± 2.6 (30; 24-33) weeks [mean ± standard deviation (median; range)]) using an automatic oscillometric device. Urinary steroid profiles were determined in 24-h urine samples (preterms n = 109; terms n = 113) using gas chromatographic-mass spectrometric analysis. To assess excretion of cortisol and androgen metabolites per day, major cortisol and androgen metabolites were summed, respectively. To assess aldosterone excretion per day tetrahydrocorticosterone, 5α-tetrahydrocorticosterone, and tetrahydro-11-deydrocorticosterone were summed. Results: Multiple regression analyses showed prematurity to be associated with systolic but not with diastolic blood pressure. When adjusted for potential confounders (prematurity, gender, age at day of examination, being born small for gestational age, breastfeeding, accelerated weight gain during infancy, family history of cardiovascular disease, parental hypertension, and body mass index) prematurity was shown to be associated with an increase in systolic blood pressure by 2.87 mmHg (95% confidence interval 0.48-5.27; p = 0.02). Cortisol, androgen metabolite, and aldosterone precursor excretion per day were not higher in individuals born preterm. In contrast to our hypothesis, multiple regression analysis showed prematurity to independently decrease cortisol and aldosterone precursor excretion per day (p < 0.001 and 0.04, respectively). Conclusion: This study provides further evidence for systolic blood pressure to be higher after preterm birth as early as at the age of 5 to 7 years. However, this seems not to be explained by elevated excretion of cortisol and/or androgen metabolites.
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Affiliation(s)
- Eva Landmann
- Department of Pediatric Hematology and Oncology, Center of Child and Adolescent Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Markus Brugger
- Institute of Medical Biometry and Epidemiology, Philipps-University Marburg, Marburg, Germany.,Institute of Genetic Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.,Institute of Medical Information Processing, Biometry and Epidemiology - IBE, Chair of Genetic Epidemiology, LMU Munich, Munich, Germany.,Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Verena Blank
- Department of Neuropediatrics, Center of Child and Adolescent Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Stefan A Wudy
- Department of Pediatrics and Neonatology, Justus Liebig University Giessen, Giessen, Germany.,Steroid Research and Mass Spectrometry Unit, Division of Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University Giessen, Giessen, Germany
| | - Michaela Hartmann
- Department of Pediatrics and Neonatology, Justus Liebig University Giessen, Giessen, Germany.,Steroid Research and Mass Spectrometry Unit, Division of Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University Giessen, Giessen, Germany
| | - Konstantin Strauch
- Institute of Medical Biometry and Epidemiology, Philipps-University Marburg, Marburg, Germany.,Institute of Genetic Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.,Institute of Medical Information Processing, Biometry and Epidemiology - IBE, Chair of Genetic Epidemiology, LMU Munich, Munich, Germany.,Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Silvia Rudloff
- Department of Pediatrics and Neonatology, Justus Liebig University Giessen, Giessen, Germany.,Institute of Nutritional Science, Justus Liebig University Giessen, Giessen, Germany
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16
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Lillås BS, Tøndel C, Aßmus J, Vikse BE. Low birthweight is associated with lower glomerular filtration rate in middle-aged mainly healthy women. Nephrol Dial Transplant 2020; 37:92-99. [PMID: 33313893 PMCID: PMC8719610 DOI: 10.1093/ndt/gfaa306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Indexed: 12/04/2022] Open
Abstract
Background Low birthweight (LBW) has been shown to increase the risk of severe kidney disease. Studies have also shown associations between LBW and lower estimated glomerular filtration rate (GFR) in young adults. In this study we investigated whether LBW associates with measured GFR (mGFR) in middle-aged mainly healthy adults. Methods We invited individuals with LBW (1100–2300 g) and individuals with normal BW (NBW; 3500–4000 g) ages 41–52 years. GFR was measured using plasma clearance of iohexol. BW and BW for gestational age (BWGA) were obtained from the Medical Birth Registry of Norway and tested as main predictors. GFR was the main outcome. Results We included 105 individuals (57 LBW and 48 NBW). The mean GFR was 95 ± 14 mL/min/1.73 m2 in the LBW group and 100 ± 13 mL/min/1.73 m2 in the NBW group (P = 0.04). There was a significant sex difference: in women the mean GFR was 90 ± 12 versus 101 ± 14 mL/min/1.73 m2 in the LBW and NBW groups, respectively (P = 0.006), whereas corresponding values for men were 101 ± 15 versus 100 ± 11 mL/min/1.73 m2 (P = 0.7). Using linear regression, we found the GFR was 4.5 mL/min/1.73 m2 higher per 1 kg higher BW for women (P = 0.02), with a non-significant 1.2 mL/min/1.73 m2 lower GFR for men (P = 0.6). In analyses of BWGA, there was also a significant association for women, but not for men. Conclusions Middle-aged mainly healthy women with LBW had lower mGFR as compared with women with NBW. No such difference was found for men.
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Affiliation(s)
- Bjørn Steinar Lillås
- Department of Medicine, Haugesund Hospital, Haugesund, Norway.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Camilla Tøndel
- Department of Clinical Medicine, University of Bergen, Bergen, Norway.,Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - Jörg Aßmus
- Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway
| | - Bjørn Egil Vikse
- Department of Medicine, Haugesund Hospital, Haugesund, Norway.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
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17
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Cardiovascular risk factors in those born preterm - systematic review and meta-analysis. J Dev Orig Health Dis 2020; 12:539-554. [PMID: 33028453 DOI: 10.1017/s2040174420000914] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Emerging evidence demonstrates a link between preterm birth (PTB) and later life cardiovascular disease (CVD). We conducted a systematic review and meta-analysis to compare conventional CVD risk factors between those born preterm and at term. PubMed, CINAHL, SCOPUS, and EMBASE databases were searched. The review protocol is registered in PROSPERO (CRD42018095005). CVD risk factors including systolic blood pressure (SBP), diastolic blood pressure (DBP), body mass index, lipid profile, blood glucose, and fasting insulin among those born preterm (<37 weeks' gestation) were compared with those born at term (≥37 weeks' gestation). Subgroup analyses based on gender, age, gestational at birth (<32 weeks' gestation and <28 weeks' gestation), and PTB associated with small for gestational age or average for gestational age were also performed. Fifty-six studies provided data on 308,987 individuals. Being born preterm was associated with 3.26 mmHg (95% confidence interval [CI] 2.08 to 4.44) higher mean SBP and 1.32 mmHg (95% CI: 0.61 to 2.04) higher mean DBP compared to being born at term. Subgroup analyses demonstrated that SBP was higher among (a) preterm compared to term groups from early adolescence until adulthood; (b) females born preterm but not among males born preterm compared to term controls; and (c) those born at <32 weeks or <28 weeks compared to term. Our meta-analyses demonstrate higher SBP and DBP among those born preterm compared to term. The difference in SBP is evident from early adolescence until adulthood.
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18
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Staub E, Urfer-Maurer N, Lemola S, Risch L, Evers KS, Welzel T, Pfister M. Comparison of Blood Pressure and Kidney Markers between Adolescent Former Preterm Infants and Term Controls. CHILDREN (BASEL, SWITZERLAND) 2020; 7:E141. [PMID: 32957564 PMCID: PMC7552693 DOI: 10.3390/children7090141] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/10/2020] [Accepted: 09/15/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND Preterm infants are at an increased risk of developing hypertension and chronic kidney disease later in life. No recommendations exist for blood pressure (BP) and renal follow up for these patients. AIM To compare BP and serum and urinary kidney markers between preterm-born adolescents and term-born controls. METHODS BP measurements in 51 preterm-born (≤32 weeks gestational age) and 82 term-born adolescents at the age of 10-15 years were conducted. Stepwise regression analysis explored the association between BP and participant characteristics. Kidney markers measured in the serum and urine were creatinine, neutrophil gelatinase-associated lipocalin (NGAL), and uromodulin. Kidney markers measured in the serum were cystatin C, beta-2 microglobulin, and beta trace protein. RESULTS Systolic BP was significantly higher in preterm boys compared with term boys, but not in girls, and low birth weight was associated with higher BP in boys. In the preterm group, maternal hypertension/preeclampsia and adolescent height were associated with higher systolic BP. Serum creatinine and NGAL were significantly higher in the preterm group. CONCLUSIONS Our study confirms an inverse sex-dependant relationship between birth weight and BP at adolescent age. The higher serum creatinine and NGAL in the preterm group may indicate that premature birth affects kidney function in the long term.
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Affiliation(s)
- Eveline Staub
- Department of Neonatology, Royal North Shore Hospital, St Leonards, NSW 2065, Australia
- Department of Neonatology, University of Basel Children’s Hospital, 4056 Basel, Switzerland;
| | - Natalie Urfer-Maurer
- Department of Psychology, University of Basel, 4056 Basel, Switzerland;
- Centre for Early Intervention, Department of Education, 4001 Basel-Stadt, Switzerland
| | - Sakari Lemola
- Department of Psychology, University of Bielefeld, 33615 Bielefeld, Germany;
- Department of Psychology, University of Warwick, Coventry CV4 7AL, UK
| | - Lorenz Risch
- Labormedizinische Zentren Dr Risch, 9490 Vaduz, Liechtenstein;
| | - Katrina S. Evers
- Department of Neonatology, University of Basel Children’s Hospital, 4056 Basel, Switzerland;
| | - Tatjana Welzel
- Department of Pediatric Pharmacology and Pharmacometrics, University of Basel Children’s Hospital, 4056 Basel, Switzerland; (T.W.); (M.P.)
| | - Marc Pfister
- Department of Pediatric Pharmacology and Pharmacometrics, University of Basel Children’s Hospital, 4056 Basel, Switzerland; (T.W.); (M.P.)
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19
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Lin F, Yang C, Feng T, Yang S, Zhou R, Li H. The Maternal-Fetal Interface in Small-for-Gestational-Age Pregnancies Is Associated With a Reduced Quantity of Human Decidual NK Cells With Weaker Functional Ability. Front Cell Dev Biol 2020; 8:633. [PMID: 33015028 PMCID: PMC7509437 DOI: 10.3389/fcell.2020.00633] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 06/24/2020] [Indexed: 12/17/2022] Open
Abstract
Small for gestational age (SGA) refers to a birth weight that is less than the 10th percentile of the mean weight of infants at the same gestational age. This condition is associated with a variety of complications, and a high risk of cardiovascular and cerebrovascular diseases in adulthood. Decidual natural killer (dNK) cells at the maternal–fetal interface have received significant research attention in terms of normal pregnancy or miscarriage; however, data relating to SGA are limited. In this study, we aimed to investigate the characteristics and regulatory role of dNK cells at the maternal–fetal interface in SGA. Using immunofluorescence assays, we found that dNK cells maintained close contact with extra-villous trophoblasts, and the proportion of dNK cells in SGA decreased more than in appropriate for gestational age (AGA). Flow cytometry also showed that there was a significantly lower percentage of dNK cells in SGA (25.01 ± 2.43%) than in AGA (34.25 ± 2.30%) (p = 0.0103). The expression of the inhibitory receptor NKG2A on dNK cells and the secretion levels of both perforin and TGF-β1 from dNK cells were significantly higher in SGA than in AGA, while the cytotoxicity of dNK cells in SGA against K562 cells was attenuated. Compared to AGA, the functional ability of dNK cells in SGA showed significant functional impairment in promoting proliferation, migration, invasion, and tube formation in trophoblast cells or vascular endothelial cells. The abnormal function of dNK cells may affect fetal growth and development, and could therefore participate in the pathogenesis of SGA.
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Affiliation(s)
- Fang Lin
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Chuan Yang
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Ting Feng
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Shuo Yang
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Rong Zhou
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Hong Li
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
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20
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Kandasamy Y, Rudd D, Lumbers ER, Smith R. An evaluation of preterm kidney size and function over the first two years of life. Pediatr Nephrol 2020; 35:1477-1482. [PMID: 32297001 PMCID: PMC7316836 DOI: 10.1007/s00467-020-04554-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 03/20/2020] [Accepted: 03/24/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND We carried out a study to determine the impact of prematurity on kidney development in the first 2 years of life. METHODS In this prospective study, extremely preterm neonates (gestation < 28 weeks) were recruited and underwent assessments at 6, 12, and 24 months of age. A cohort of neonates born term were also recruited and followed up for 24 months. The primary outcomes measured in this study were total kidney volume (TKV) and estimated glomerular filtration rate (eGFR); albuminuria and blood pressure measurements (all provided as mean (standard deviation)) were the secondary outcomes. RESULTS Fifty-three premature and 31 term neonates (control) were recruited. At the age of 24 months (corrected age), infants born preterm had significantly smaller TKV (56.1 (9.4) vs. 64.8 (10.2) mL; P = 0.006). There was no difference in eGFR. These preterm infants were smaller (11.25 (1.53) vs. 12.9 (1.8) kg; P = 0.002) and shorter (83.8 (3.0) vs. 86.3 (3.4) cm; P = 0.02) when compared with the control group. At 6, 12, and 18 months respectively, preterm infants had, relative to their height, significantly smaller kidney volumes (0.54 (0.1) vs. 0.59 (0.1) mL/cm, P = 0.05; 0.61 (0.1) vs.0.71 (0.1) mL/cm, P = 0.003; and 0.67 (0.1) vs.0.76 (0.1) mL/cm, P = 0.006). CONCLUSIONS Relative to body length, TKV in premature infants is smaller. Since length reflects adult body proportions more accurately than BSA, TKV to height ratio may be a more important measure in the child. Despite smaller TKV (and therefore fewer nephrons), infants born prematurely achieve similar eGFRs in the first 24 months of life, probably due to single-nephron hyperfiltration.
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Affiliation(s)
- Yogavijayan Kandasamy
- Department of Neonatology, The Townsville Hospital, 100 Angus Smith Drive, Douglas, Queensland, 4814, Australia.
- Mothers and Babies Research Centre, Hunter Medical Research Institute, HMRI, The University of Newcastle, Newcastle, NSW, 2310, Australia.
- College of Medicine and Dentistry, James Cook University, Douglas, QLD, 4814, Australia.
| | - Donna Rudd
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Douglas, QLD, 4814, Australia
| | - Eugenie R Lumbers
- Mothers and Babies Research Centre, Hunter Medical Research Institute, HMRI, The University of Newcastle, Newcastle, NSW, 2310, Australia
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, NSW, 2310, Australia
| | - Roger Smith
- Mothers and Babies Research Centre, Hunter Medical Research Institute, HMRI, The University of Newcastle, Newcastle, NSW, 2310, Australia
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Goetschalckx E, Mekahli D, Levtchenko E, Allegaert K. Glomerular Filtration Rate in Former Extreme Low Birth Weight Infants over the Full Pediatric Age Range: A Pooled Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17062144. [PMID: 32213814 PMCID: PMC7142917 DOI: 10.3390/ijerph17062144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 03/20/2020] [Indexed: 12/21/2022]
Abstract
Various cohort studies document a lower glomerular filtration rate (GFR) in former extremely low birth weight (ELBW, <1000 g) neonates throughout childhood when compared to term controls. The current aim is to pool these studies to describe the GFR pattern over the pediatric age range. To do so, we conducted a systematic review on studies reporting on GFR measurements in former ELBW cases while GFR data of healthy age-matched controls included in these studies were co-collected. Based on 248 hits, 6 case-control and 3 cohort studies were identified, with 444 GFR measurements in 380 former ELBW cases (median age 5.3–20.7 years). The majority were small (17–78 cases) single center studies, with heterogeneity in GFR measurement (inulin, cystatin C or creatinine estimated GFR formulae) tools. Despite this, the median GFR (mL/min/1.73 m2) within case-control studies was consistently lower (−13%, range −8% to −25%) in cases, so that a relevant minority (15–30%) has a eGFR<90 mL/min/1.73 m2). Consequently, this pooled analysis describes a consistent pattern of reduced eGFR in former ELBW cases throughout childhood. Research should focus on perinatal risk factors for impaired GFR and long-term outcome, but is hampered by single center cohorts, study size and heterogeneity of GFR assessment tools.
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Affiliation(s)
- Elise Goetschalckx
- Department of Development and Regeneration, KU Leuven, Herestraat 49, 3000 Leuven, Belgium; (E.G.); (D.M.); (E.L.)
| | - Djalila Mekahli
- Department of Development and Regeneration, KU Leuven, Herestraat 49, 3000 Leuven, Belgium; (E.G.); (D.M.); (E.L.)
- Department of Pediatric Nephrology and Organ Transplantation, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Elena Levtchenko
- Department of Development and Regeneration, KU Leuven, Herestraat 49, 3000 Leuven, Belgium; (E.G.); (D.M.); (E.L.)
- Department of Pediatric Nephrology and Organ Transplantation, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Karel Allegaert
- Department of Development and Regeneration, KU Leuven, Herestraat 49, 3000 Leuven, Belgium; (E.G.); (D.M.); (E.L.)
- Department of Pharmacy and Pharmaceutical Sciences, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
- Department of Clinical Pharmacy, Wytemaweg Hospital Pharmacy Postbus 2040, Erasmus MC, Rotterdam, The Netherlands
- Correspondence:
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22
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Horie A, Abe Y, Koike D, Hirade T, Nariai A, Ito T, Katou F. Long-term renal follow up of preterm neonates born before 35 weeks of gestation. Pediatr Int 2019; 61:1244-1249. [PMID: 31495051 PMCID: PMC6973113 DOI: 10.1111/ped.14004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 07/02/2019] [Accepted: 07/08/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND The hypothesis of the Developmental Origins of Health and Disease states that environmental factors during fetal and infantile life are risk factors for some chronic diseases in adulthood. Few studies, however, have confirmed this hypothesis early in childhood. Therefore, we assessed how premature birth and low-birthweight (LBW) affect the renal function of Japanese children. METHODS This retrospective study surveyed 168 patients who were born before 35 weeks of gestation and were cared for at the present neonatal intensive care unit. Follow-up duration was >2 years. Serum creatinine (sCr) and estimated glomerular filtration rate (eGFR) recorded in medical records were reviewed. RESULTS The eGFR at 2 years of age was significantly correlated with birthweight and gestational age (P < 0.01). Approximately 10.7% of the children had low eGFR (<90 mL/min/1.73 m2 ) without clinical symptoms or abnormal urine examination. These children had high sCr on day 7 after birth (P < 0.01) and delayed recovery of these levels during the first month after birth. CONCLUSION Premature gestational age and LBW directly affect renal function in young children. High sCr on day 7 after birth is a risk factor for chronic kidney disease in children. Careful follow up of renal function is therefore required for premature infants and infants with LBW beginning in early childhood to prevent renal dysfunction.
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Affiliation(s)
- Akiyoshi Horie
- Division of Pediatrics, Shimane Prefectural Central Hospital, Himebara, Izumo, Shimane, Japan
| | - Yasuhiro Abe
- Division of Pediatrics, Shimane Prefectural Central Hospital, Himebara, Izumo, Shimane, Japan
| | - Daisuke Koike
- Division of Pediatrics, Shimane Prefectural Central Hospital, Himebara, Izumo, Shimane, Japan
| | - Tomohiro Hirade
- Division of Pediatrics, Shimane Prefectural Central Hospital, Himebara, Izumo, Shimane, Japan
| | - Akiyoshi Nariai
- Division of Pediatrics, Shimane Prefectural Central Hospital, Himebara, Izumo, Shimane, Japan
| | - Tomoko Ito
- Division of Neonatology, Shimane Prefectural Central Hospital, Himebara, Izumo, Shimane, Japan
| | - Fumihide Katou
- Division of Neonatology, Shimane Prefectural Central Hospital, Himebara, Izumo, Shimane, Japan
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23
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Abstract
Preterm birth is associated with adverse renal health outcomes including hypertension, chronic kidney disease, and an increased rate of progression to end-stage renal failure. This review explores the antenatal, perinatal, and postnatal factors that affect the functional nephron mass of an individual and contribute to long-term kidney outcome. Health-care professionals have opportunities to increase their awareness of the risks to kidney health in this population. Optimizing maternal health around the time of conception and during pregnancy, providing kidney-focused supportive care in the NICU during postnatal nephrogenesis, and avoiding accelerating nephron loss throughout life may all contribute to improved long-term outcomes. There is a need for ongoing research into the long-term kidney outcomes of preterm survivors in mid-to-late adulthood as well as a need for further research into interventions that may improve ex utero nephrogenesis.
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Affiliation(s)
- Amanda Dyson
- Centenary Hospital for Women and Children and Department of Neonatology, Canberra Hospital, Woden, Australia
- Australian National University, Canberra, Australia
| | - Alison L Kent
- University of Rochester and Division of Neonatology, Golisano Children's Hospital at URMC, Rochester, NY
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